Dawn on Tuesday, February 18, 2014 passed a giant rock the size of three football pitches ( diameter 270 meters) was the estimated distance nine times almost like the distance between the Earth and the moon , which is just two million , six hundred thousand kilometers from Earth , the closest distance to the Rock orbit around the sun for the land .
This is called the Rock 2000-EM 26, and was quickly released 43 thousand kilometers per hour , which is considered within the near-Earth objects - which are abbreviated with the letters "NEO". But what upset the general public all over the world is what they have heard from news agencies about the extent of the destruction that can be caused . Always what scientists estimated the size of the potential destruction even if it does not happen , if - God forbid - the collision was such that the body was the ground will result in a destructive force estimated at about 2500 Hiroshima bomb .
This concern members of the site called " Slough " (Slooh) mail to monitor the event via satellite cameras and Tlescopathm mechanism through their Web site , and also by downloading the application on your Active iPad devices .
Passed it peacefully , without occurrence of something , and then repeated this phenomenon at the dawn on Thursday, February 20, 2014 from the same week as passed rock -like of these rocks the size of a building length 98 meters dubbed "BR57-2014" and was at a distance estimated at four times away from each other between the Earth and the Moon , and passed it peacefully , without occurrence of something , too.
In fact, there are tens of thousands of near-Earth objects , which participated in the monitoring of the telescope astronomer famous "PAN-STARRS-1" at the University of Hawaii , funded by the National Aeronautics and Space Administration (NASA ) .
Most of these objects from the rocky asteroids and comets and the remnants of the solar system , ranging in size between the size of a regular rock on the ground and giant rocks the size of buildings and playgrounds for football , others the size of neighborhoods and cities !
Scientists say specialists in this field that approximately 10% of these objects ( asteroids ) and which have a diameter less than a kilometer can affect the Earth in the future , and about 15 thousand of them are up to the size of a football field , about a hundred meters , and more than million , including body size up to less than thirty meters .
In the wake of the importance of this subject, NASA asked the U.S. Congress in 2005 to allow them to search and detect celestial bodies that are up to a diameter of more than a hundred meters , where modern technology can face the danger of collision if the land was predictable enough time before it happens . The date of the close monitoring of near-Earth objects to 1998 when NASA launched a special program to monitor the path of objects approaching Earth .
Most of celestial objects falling on the Earth plunged in uninhabited places ( European - Archive)
This is because the attention of scientists in this asteroids because they are volatile track and speed , which makes monitoring and tracking is difficult , and this in turn is a major threat on the ground . And change the course of these small objects come from they are affected by a factor of gravitational pull of planets nearby as the hottest part of it during exposure to the sun causes the change course and speed , and in this regard play the attractiveness of Jupiter (the largest planet of the solar system ), a major role for the land , thanks to the mass of the huge works a trap for these asteroids and meteorites and waste of the solar system and avoids the ground risks are many, but on the other hand , the giant planet Jupiter pushes some of these rock masses out of the asteroid belt located between the orbit and the orbit of Mars , making it likely to fall on the ground at the same time .
The real risk lies in the objects that exceed a diameter of 150 meters and pass near the Earth at a distance of less than eight million kilometers, note that the diameter of the Earth about 13 thousand kilometers , and compared to find that Qatar meteor region Mount Ural , who fell on the Russian territory in 2013 did not exceed a diameter of 15 meters , and weighed more than 11 tons and stems quickly twenty kilometers per second ( faster than any bullet ) causing light resounding exceeded sunlight , and issued a roar strong even hit the ground and caused a wound more than a thousand people as a result of broken glass and flying by the loud sound of the blast, which was heard in six cities around the region , and finally landed a part in the lake nearby , and after almost a month of research and exploration have been recovered this part of the bottom of the lake and found that weighed more than 650 kilograms, and was buried at a depth of twenty meters under a thick layer of mud , and now he was placed at the Museum of the territory in which it fell .
And in any case it is God's blessings on us that make more than two-thirds of the earth from the water , the water is by more than 71% , and there are landlocked vast expanses of deserts , forests, uninhabited , and that most of the objects falling on us from space located either in the water or in those areas that are not populated . Thank God .
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